Home / 111,439.92-166,001.64-105,403.68

Finding the Fourth Proportional to 111,439.92, 166,001.64 and 105,403.68

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Solution

The fourth proportional to 111,439.92, 166,001.64 and 105,403.68 is: 157,010.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,439.92 : 166,001.64 = 105,403.68 : x
  2. Step 2: Convert to fraction form
    111,439.92/166,001.64 = 105,403.68/x
  3. Step 3: Cross multiply
    111,439.92x = 166,001.64 × 105,403.68
  4. Step 4: Simplify right side
    111,439.92x = 17,497,183,742.04
  5. Step 5: Solve for x
    x = 17,497,183,742.04/111,439.92
  6. Step 6: Final answer
    x = 157,010.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.